Extrusion head for caulking gun



FIG. 1 is a perspective view of an extrusion head for a caulking gun embodying my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational view thereof, the right side being a mirror image;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear elevational view thereof; and

FIG. 6 is a front elevational view thereof. 

The ornamental design for an extrusion head for a caulking gun, as shown and described. 